MACK RD6 2003: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

Make : MACK Model : RD6 Year : 2003
Build Dates : 2003-05-19 - 2003-07-11
NHTSA CAMPAIGN ID Number : 03V253000
Date Owner's Notified: 2003-11-26 Date Received by ODI: 2003-07-17 Date Added to Database: 2003-07-28
Manufacturers Involved: Mack Trucks, Inc.
Manufacturer's Responsible for the Recall:
Manufacturer Campaign Number: SC0281
Component: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Potential Number Of Units Affected : 1232
Summary:
      CERTAIN HEAVY DUTY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." IMPROPER SEATING OF THE CHECK VALVE RETAINER IN THE BRASS FITTING HOUSING HAS OCCURRED. IT IS POSSIBLE FOR THE AIR BRAKE SYSTEM PRESSURE TO PUSH THE CHECK VALVE INTERNAL PARTS INTO THE PRIMARY SYSTEM RESERVOIR AND A VEHICLE OPERATOR WOULD NOT KNOW THAT THIS HAS HAPPENED.
Consequence:
      IN THIS CONDITION, THE VEHICLE WOULD NOT MEET THE EMERGENCY REQUIREMENTS OF THE STANDARD.
Remedy:
      DEALERS WILL REPLACE THE CHECK VALVE. OWNER NOTIFICATION BEGAN NOVEMBER 26, 2003. OWNERS SHOULD CONTACT MACK AT 1-610-709-3337.
Report Initiator: MFR V Report
Regulation Part Number: 571 Federal Motor Vehicle Safety Standard Number: 121
Notes:
      MACK RECALL NO. SC0281.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT '1-888-327-4236'.